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Monogenean Trematodes
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SUMMARY
Monogenean trematodes are found on fresh and salt water fishes throughout the world. They have a direct life cycle and can reproduce in a wide range of temperatures. Trematodes have a series of hooks that attach to the fish, causing irritation, excessive mucus production, and create an open window for bacterial invasion. A few flukes on a healthy mature fish are usually not significant, however, moderate numbers on a young fish can cause significant mortalities. When fish are crowded or sanitation practices are poor, the potential damage from monogeneans is greater. Prevention of monogenean infestations by following appropriate quarantine practices is preferable to treating the parasites after they have become established in a system. Formalin and potassium permanganate baths are effective for controlling monogenean infestations in freshwater fish, and copper is often used to control infestations of marine fish.


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Footnotes
1. This document is FA-28, one of a series of the Department of Fisheries and Aquatic Sciences, Florida Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida. First Published June 1996. Revised January 1999. Please visit the EDIS Web site at http://edis.ifas.ufl.edu.

2. Peggy Reed, biological sciences, Fisheries and Aquatic Sciences; Ruth Francis-Floyd, extension veterinarian, Fisheries and Aquatic Sciences and RuthEllen Klinger, biological scientist, Fisheries and Aquatic Sciences, Cooperative Extension Service, Institute of Food and Agricultural Sciences, University of Florida, Gainesville, 32611.

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The Institute of Food and Agricultural Sciences is an equal opportunity/affirmative action employer authorized to provide research, educational information and other services only to individuals and institutions that function without regard to race color, sex, age, handicap, or national origin. For information on obtaining other extension publications, contact your county Cooperative Extension Service office.

Florida Cooperative Extension Service / Institute of Food and Agricultural Sciences / University of Florida / Christine Taylor Waddill, Dean

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Copyright Information
This document is copyrighted by the University of Florida, Institute of Food and Agricultural Sciences (UF/IFAS) for the people of the State of Florida. UF/IFAS retains all rights under all conventions, but permits free reproduction by all agents and offices of the Cooperative Extension Service and the people of the State of Florida. Permission is granted to others to use these materials in part or in full for educational purposes, provided that full credit is given to the UF/IFAS, citing the publication, its source, and date of publication.



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